Nut-lock.



No; 736,456 PATENTBD AUG. 18, 1903; G. F. STROHMENGER & J. R. GLANGY.

NUT LOCK. APPLICATION FILED 001215. 1902.

N0 MODEL.

WITNESSES Patented August 18, 1903.

UNITED STATES PATENT, OFFICE.

CARL F. S'IROHMENGER, OF NEW YORK, AND JOHN R. CLANOY, OF SYRACUSE, NEW YORK.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 736,456, dated August 18, 1903.

Application filed October 16, 1902. Serial No. 127,349. (No model.)

To all whom it may concern:

Be it known that we, CARL F. STROHMEN- GER, aresident of New York, in the county of New York, and JOHN R. CLANCY, a resident of Syracuse, in the county of Onondaga, State of New York, citizens of the United States, havej ointly invented new and usefullmprovements in Nut-Locks, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention pertains to bolts, more particularly of the style employed in railwaytrack construction, although it may be variously used.

The invention resides in the novel means combined with the bolt and its nut for locking the latter to securely retain the same in tightened condition.

One of the objects of our invention is to provide a locking device which can be quickly and easily applied subsequent to the tightening of the nut and can be readily removed, if required, and at the same time shall positively and effectually prevent the nut from becoming loose on the bolt.

Another object of the present invention is to provide a device which shall be simple, strong, and durable in construction and shall present a neat appearance, and also produce a device which shall be inexpensive in its manufacture.

To that end the invention consists, essentially, of a nut-lo ck comprising means adapted to be applied to the bolt and nut subsequent to the tightening of the nut and a clamp retaining said means in looking position, and, furthermore, the invention consists in the novel details of construction, as hereinafter fully described, and set forth in the claims.

In the accompanying drawings, Figure 1 is a side view of a bolt and nut with our invention applied thereto and intended to represent the style of bolt used in railway-track construction. Fig. 2 is an end View of the same. Fig. 3 is a longitudinal section taken on line X X in Fig. 2. Fig. 4 .is a view of the screw-threaded portion of the bolt and illustrating the side reverse to that shown in Fig. 1, and Fig. 5 is a transverse section taken on line Y Y in Fig. 1.

Referring to the drawings, A denotes the nels are similar to the grooves, but are differently spaced.

0 represents a key which is inserted in the groove and registered channel subsequent to the tightening of the nut B and is preferably slightly tapered to effect a snug fit, whereby the nut is positively and effectually locked to the bolt.

To securely retain the key in locking position, we provide a clamp rigidly and permanently attached to the key and consisting of a band D partly encircling the screw-threaded portion of the bolt adjacent to the end thereof and formed with an inwardly-bent tongue 0, completing the circle. Said band is made from a sheet-metal blank, and the tongue is produced by cutting the central portion of the blank longitudinally and bending, as stated, and clearly shown in Figs. 1 and 2 of the drawings. The end portions of said band D are bent to form ears d (7/, respectively, the latter being the longer for the purpose hereinafter explained, and each ear is provided with a perforation 6, through which passes a bolt f, formed with a square head f. The ear (Z terminates with an outwardly-projecting lip g, which engages the head f of said bolt to prevent the latter from turning when the nut h is applied thereto. The application of said nut draws the ears toward each other,whereby the band D and its tongue 0 are made to firmly grip the bolt A, and thus the key 0 is securely clamped in looking position. \Vhen the band D has been firmly tightened, the ear d is bent outwardly, corresponding with the ear (Z, by any suitable means to form a lip g, as clearly shown in 2, which lip is made to engage the nut h of the bolt f, and thus said nut is prevented from becoming loose. To cause the band to more effectually grip the bolt A, we prefer to IOC form the peripheral edges of said band with inwardly-projecting flanges 2' 71, and form the free end portion of the tongue 0 with claws t" i, which flanges and claws are made to engage the threads of the bolt when the band is tightened and effectually prevent the band from shifting longitudinally on the bolt, as clearly shown in Figs. 2, 3, and 4 of the drawings.

In case the nut B is required to be loosened for any purpose it will be seen that this can be easily and quickly accomplished by simply bending back the lip g to straighten the ear d to permit the removal of the nut h, whereby the band D will release its grip on the bolt A, and thus allow the key 0 to be withdrawn from the registered channel a and groove 1).

While we prefer to provide the bolt Awith two grooves a and the nut B with four channels I), still at the same time it will be under stood that any desired and convenient nu 1nber may be employed, and, furthermore, by spacing the channels, as shown, it will be observed that only a slight turn ofthe nut is required to cause a registrationof a channel and groove.

We do not wish to be limited to the specific form of clamp shownand described,as various other clamping devices may be used without departing from the spirit our invention.

What we claim as our invention is- 1. In a nut-lock, the combination with the bolt and nut, of a key applied thereto to prevent loosening of the nut, a band embracing the bolt and fastened to said key, and a screw or bolt operative to cause the band to grip the bolt to retain the key in locking position substantially as described.

2. In a nut-lock, the combination with the bolt and nut, of a key extending lengthwise the bolt and engaging the nut to prevent the latter from becoming loose, a band partly encircling the threaded portion of the bolt and formed with an inwardly-bent tongue completing the circle, said band being rigidly fastened to the key, and means operative to cause the band and tongue to grip the bolt and thereby securely clamp the key in locking position substantially as described.

In a nut-lock, the combination with the bolt provided with a plurality of longitudinal. grooves, and the nut formed in its inner periphery with a plurality of longitudinal channels disposed to register with said grooves, of a key inserted in the registered channel and groove to prevent loosening of the nut, aband partly encircling the threaded portion of the bolt and formed with an inwardly-benttongue completing the circle, said band being rigidly fastened to the key and provided with a screw or bolt operative to cause said band and tongue to grip the bolt and thereby clamp the key in looking position substantially as described.

4. In a nut-lock, the combination with the bolt and nut, of a key extending lengthwise the bolt and engaging the nut to prevent loosening of the same, a band partly encircling the threaded portion of the bolt and formed with an inwardly-bent tongue completing the. circle, said band being rigidly fastened to the key and formed on its peripheral edges with flanges adapted to engage the threads of the bolt, and provided with a screw or bolt operative to cause said band and tongue to grip the bolt and thereby securely clamp the key in looking position substantially as described.

5 In a nut-lock, the combination with the bolt and nut, of a key extending lengthwise the bolt and engaging the nut to prevent the latter from becoming loose, a band partly encircling the threaded portion of the bolt and formed with an inwardly-bent tongue com pletin g the circle, the peripheral edges of said band being formed with flanges adapted to engage the threads of thebolt, and the tongue terminating with claws adapted for the same purpose, said band being rigidly fastened to the key and provided with a screw or bolt operative to cause said band and tongue to grip the bolt and thereby securely clamp the key in looking position substantially as described. 6. In a nut-lock, the combination with the bolt formed with a plurality of longitudinal grooves at its screw-threaded portion, and the nut formed in its inner periphery with a plurality of longitudinal channels disposed to register with said grooves, of a key inserted in the registered channel and groove, a band partly encircling the threaded portion of the bolt and formed with an inwardly-bent tongue claws adapted for the same purpose, said band bein g rigidly fastened to the key and provided with a screw or bolt operative to cause the band and tongue to grip the bolt and thereby securely clamp the key in locking position substantially as described.

7. In a nut-lock, the combination with the bolt and nut, of a key serving to prevent loosening of the nut and applicable subsequent to the tightening of the nut, a band embracing the screw-threaded portion of the bolt and rigidly fastened to the key, said band having its end portions formed with ears provided with perforations and terminating with outwardlyprojecting lips, a bolt passing through said perforations and having its head and nut engaging the respective lips for the purpose set forth and being operative to cause the band to grip the main bolt and thereby securely clamp the key in locking position substantially as described.

CARL F. STROHMENGER. JOHN R. CLANGY. Witnesses for Carl F. Strohmenger:

GEO. F. GIsMoNn, EDWARD SIEDLE. \Vitnesses for John R. Clancy:

GEO. E. MITCHELL, W. A. REATLIN. 

